Concurrent Request through out into Warning for XML Report

Hi,
When i submit concurrent request for XML report, the request is through out into the Warning. The logfile contains below details. Anybody can suggest what changes needs to be done for NLS_LANG and NLS_NUMERIC_CHARACTERS?

It means the system cannot access the XML file. Do you have any bursting in the XML, if so please check if you have provided the temporary folder location in XML Administrator. Also make sure it has read write permissions.

Another possibility is that if you are importing other templates into your main template you need to have proper reference call to sub templates. Best way is to use below syntax: